Surname إيليان (Ilian 
, Iliyan 
, إيليان) , globally, is quite a rare cognomen. The last name إيليان is habitual in Bulgaria, where it is a rare surname, Honduras, and Romania. In absolute terms, the name is most common in Mexico, Colombia, and Algeria. More prevalently, إيليان is the forename as well as the last name.
| VARIANT | COUNTRY |
|---|---|
| Ilian | Mexico, Greece, India, France, Bulgaria |
| Iliyan | United States, Greece, India, France, Bulgaria |